(Acrocephalus palustris)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 7 000 - 15 000 pairs Distribution pattern With patchy distribution over a considerable part of the country's territory, mainly in the lowlands, but also in hilly and...

(Hippolais pallida)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 800 – 1900 pairs Distribution pattern Found in all lowland and mountainous areas in the country with small wetlands overgrown with higher aquatic vegetation. The main...

(Sylvia melanocephala)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 800 – 1 200 pairs Distribution pattern With patchy distribution, more compact in the Eastern Rhodopes and in the valleys of the rivers Struma and Mesta with the...

(Sylvia curruca)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 10 000 - 30 000 pairs Distribution pattern With patchy distribution, but not everywhere in the country – without the high mountain treeless zone. More densely mainly, in the...

(Larus melanocephalus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 0 - 62 pairs Distribution pattern With isolated breeding sites at the Black Sea, coast depending on the existence of salt or hypersaline lakes, mainly at the...

(Parus palustris)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 100 000 - 200 000 pairs Distribution pattern With a patchy distribution, covering more compactly the deciduous and mixed belt in most mountains (Rila-Rhodope Massif, Stara...

(Turdus viscivorus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 80 000 – 120 000 pairs Distribution pattern With patchy distribution, covering the entire mountainous part of the country, including the lower mountains. With located in...

(Lanius nubicus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 200 - 350 pairs Distribution pattern With patchy and dispersed distribution mainly in Sakar, the Eastern Rhodopes, and Western Strandzha and along the rivers Maritsa,...

(Anas platyrhynchos)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2 500 – 6 000 pairs Distribution pattern The most common breeding duck species, with dense or more dispersed distribution all over the country with the exception of the...

(Circus pygargus)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2020: 291-481 pairs (2007: 220-270 pairs) Distribution pattern Widespread and numerous breeding species in the Upper Thracian Plain. In the rest of the country very rare...

(Acrocephalus melanopogon)Category of conservation concern (IUCN, 2020) - Least Concern Population size: 2020: 20-57 pairs (2007: 5-25 pairs) Distribution pattern With dispersed single sites, mainly along the Black Sea coast and the Danube River. Confirmed breeding...